.saver {
  width: 100%;
  height: 100vh;
  background: url(../../assets/images/screenbg.png) left top/cover;
  position: relative;
  overflow: hidden;
}
.mask {
  position: absolute;
  left: 0;
  top: 0;
  width: 0;
  height: 0;
  border: 80vh solid transparent;
  border-left-color: rgba(0, 0, 0, 0.14);
  border-bottom-color: rgba(0, 0, 0, 0.14);

  transform: translateY(-20vh);
  pointer-events: none;
}
.desc {
  position: absolute;
  left: 10%;
  bottom: 40%;
  color: white;
}
.date {
  font-size: 1.8rem;
  margin-bottom: 2rem;
}